MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to URLs that are also present in the heuristic findings, suggesting a coordinated effort to drive traffic to these external resources.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://enkidimata.com/uploads/1/3/1/6/131636974/131636974.html#math+nets+worksheets PDF link annotation
- http://mta-sts.mailscanner.columbiacomputers.com/uploads/1/3/1/4/131436978/2006851.pdfIn PDF document text
- http://comfycribs.com/uploads/1/3/0/5/130539129/6906776.pdfIn PDF document text
- http://dmdesignwsussex.com/uploads/1/3/1/3/131380184/medupisamiwupikasig.pdfIn PDF document text
- http://fasoemarket.com/uploads/1/3/0/8/130873825/7013010.pdfIn PDF document text
- http://georgeanddukespetsitter.com/uploads/1/3/0/7/130776100/8abc0966.pdfIn PDF document text
- http://sktutorials.org/uploads/1/3/2/6/132681281/wadasemozubenobidajo.pdfIn PDF document text
- http://francesljohnsondesigns.com/uploads/1/3/0/5/130550895/418279.pdfIn PDF document text
- http://mail.stuijvesant.be/uploads/1/3/0/6/130639311/5338385.pdfIn PDF document text
- http://escwire.com/uploads/1/3/0/4/130476114/1dd9d8.pdfIn PDF document text
- http://475.undesirable.us/uploads/1/3/1/6/131636758/balazodip-zirepu-kavibek-xesak.pdfIn PDF document text
- http://dc-41c6f259fec2.khsfinefurniture.com/uploads/1/3/0/6/130620406/pikerizewuku.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C42 | 4640 bytes |
SHA-256: a7e50f0ed8bdb6de1469fbd67c69eb03dfb87d92b08dbc96754a4521993626ea |
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font_01_sfnt_off00006bff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BFF | 9256 bytes |
SHA-256: 4bf0e1223eb97eb71e06fbb6c89ace06d007d1ef005cec6a2e20507eabffea02 |
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